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Fertility Preservation Through Oocyte Vitrification: Clinical and Laboratory Perspectives
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Emergency contraception: which is the best?

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Summary

Emergency contraception prevents unwanted pregnancy. Copper IUDs are most effective, while levonorgestrel (LNG) pills offer a good balance of efficacy and safety. Ulipristal acetate (UPA) provides a wider efficacy window and suits obese women.

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Area of Science:

  • Reproductive Health
  • Contraception
  • Public Health

Background:

  • Emergency contraception (EC) is crucial for preventing unintended pregnancies post-unprotected intercourse.
  • Available EC methods vary in action, efficacy, dosage, and side effects, necessitating informed choices.
  • Understanding these differences is key for effective post-coital pregnancy prevention.

Purpose of the Study:

  • To review and compare available emergency contraception methods.
  • To analyze EC options based on efficacy, safety, and side effect profiles.
  • To discuss repeated EC use and initiating regular contraception post-EC.

Main Methods:

  • Comprehensive literature review on emergency contraception.
  • Comparative analysis of different EC methods (copper IUD, Yuzpe regimen, LNG, Mifepristone, UPA).
  • Evaluation of efficacy, safety, side effects, and suitability for specific populations.

Main Results:

  • Copper IUD is the most effective EC but has accessibility limitations.
  • Levonorgestrel (LNG)-only pills are more effective with fewer side effects than the Yuzpe regimen.
  • Ulipristal acetate (UPA) shows comparable efficacy to LNG, with a broader efficacy window and better suitability for obese women.

Conclusions:

  • Copper IUD offers superior efficacy and ongoing contraception but requires infrastructure and trained providers.
  • LNG pills are a highly effective and safe oral EC option.
  • UPA provides a valuable alternative to LNG, especially for obese women, due to its wider efficacy window.